SilverStone also exhibited a strange new case that supports longer EATX motherboard (useful for dual-socket workstation boards), but not XL-ATX (up to 10 add-on cards). Pictured below, the Silverstone Mammoth MMO1 is wider and longer than most ATX full-towers, and features two large 180 mm front intake fans that draw air through an air-filter. It forms part of the lower-front panel. The upper portion reveals a couple of 5.25-inch bays, and front-panel ports, such as USB 3.0 and HD audio.

^ true! i can see 2 fittings near the bottom of the front door - inlet + outlet most likely.. can be missed in the 2nd pic but clearly visible in the first..
the white mesh/grid is the rad? but the it 'seems' like a filter(similar to cars, as onedub said) or probably the rad inner face lined with this white filter?..

I'm pretty sure those 'nozzles' nearly everyone is talking about are actually clips that just hold the filter in place on the case. I think they just clip into place between the two bits of plastic just below the bottom fan on the front panel.